JP6948462B2 - 接着剤組成物、これを用いて形成された接着剤層を含む偏光板 - Google Patents
接着剤組成物、これを用いて形成された接着剤層を含む偏光板 Download PDFInfo
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- JP6948462B2 JP6948462B2 JP2020515129A JP2020515129A JP6948462B2 JP 6948462 B2 JP6948462 B2 JP 6948462B2 JP 2020515129 A JP2020515129 A JP 2020515129A JP 2020515129 A JP2020515129 A JP 2020515129A JP 6948462 B2 JP6948462 B2 JP 6948462B2
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- IWTLQAPGRUQGKD-UHFFFAOYSA-N 3-ethyl-3-(2-ethylhexoxy)-2-methyloxetane Chemical compound C(C)C1(C(OC1)C)OCC(CCCC)CC IWTLQAPGRUQGKD-UHFFFAOYSA-N 0.000 claims description 10
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Images
Classifications
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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Description
下記表1に記載の重量%で接着剤組成物を製造した。
− CHDMDGE:1,4−シクロヘキサンジメタノールジグリシジルエーテル
− BPF:ビスフェノールFジグリシジルエーテル
− OXT221:3,3’−オキシビス(メチレン)ビス(3−エチルオキセタン)
− OXT101:3−エチル−3−ヒドロキシメチルオキセタン
− OXT212:3−エチル−3−(2−エチルヘキシルオキシ)メチルオキセタン
偏光子と高分子フィルムとの剥離力を測定した。剥離実験は、幅20mm、長さ100mmの偏光板を用いて、速度300mm/min、90゜剥離時の剥離力を測定した。剥離力が2N/2cmを超える場合を優秀、1N/2cm〜2N/2cmの場合を良好、1N/2cm未満の場合を悪いと表示した。
ACR UP:PVAフィルムを固定し、アクリルフィルムを剥がす場合
偏光板をガラス基板にラミネーション(glass lamination)した後に、60℃の恒温槽に浸漬させた。24時間経過後、偏光子と高分子フィルムとの剥離力を測定した。測定方法は、偏光板の剥離力評価と同一である。
偏光板をガラス基板にラミネーション(glass lamination)し、これを−40℃で30分間放置した後、これを再び70℃で30分間放置することを100回繰り返し行った。その後、偏光板の外観の変形の有無を肉眼で評価した。偏光板の外観において端部にのみ2mm以下のクラックの発生がある場合を優秀、端部以外の5mm以上の短い線状のクラックのみ確認される場合を良好、偏光板の全面に多数のクラックが発生した場合を悪いと表示した。
下記表2に記載の重量%で接着剤組成物を製造した。
下記表3に記載の重量%の接着剤組成物を製造した。
− PGE:フェニルグリシジルエーテル
− t−BPGE:4−tert−ブチルフェニルグリシジルエーテル
2、4、5:接着剤層
3、6、7:保護フィルム
Claims (10)
- 3−エチル−3−(2−エチルヘキシルオキシ)メチルオキセタン、3−エチル−3−ヒドロキシメチルオキセタン、3,3’−オキシビス(メチレン)ビス(3−エチルオキセタン)、芳香族エポキシ化合物、および脂環式エポキシ化合物を含む接着剤組成物において、
前記接着剤組成物全体100重量部に対して、前記3−エチル−3−(2−エチルヘキシルオキシ)メチルオキセタンは20〜50重量部であり、前記3−エチル−3−ヒドロキシメチルオキセタンは2〜8重量部であり、前記3,3’−オキシビス(メチレン)ビス(3−エチルオキセタン)は2〜8重量部であり、前記芳香族エポキシ化合物は7〜38重量部であり、前記脂環式エポキシ化合物は10〜50重量部含まれるものである、接着剤組成物。 - 前記芳香族エポキシ化合物は、ノボラック系エポキシ、ビスフェノールA系エポキシ、ビスフェノールF系エポキシ、臭素化ビスフェノール系エポキシ、フェニルグリシジルエーテル、o−クレシル(Cresyl)グリシジルエーテル、およびノニルフェニルグリシジルエーテルからなる群より選択された1種以上である、請求項1に記載の接着剤組成物。
- 前記接着剤組成物は、脂肪族エポキシ化合物をさらに含むものである、請求項1又は2に記載の接着剤組成物。
- 前記脂肪族エポキシ化合物は、1,4−シクロヘキサンジメタノールジグリシジルエーテル、1,4−ブタンジオールジグリシジルエーテル、1,6−ヘキサンジオールジグリシジルエーテル、ネオペンチルジグリシジルエーテル、レゾルシノールジグリシジルエーテル、ジエチレングリコールジグリシジルエーテル、エチレングリコールジグリシジルエーテル、トリメチロールプロパントリグリシジルエーテル、n−ブチルグリシジルエーテル、および2−エチルヘキシルグリシジルエーテルからなる群より選択された1種以上である、請求項3に記載の接着剤組成物。
- 前記接着剤組成物全体100重量部に対して、前記脂肪族エポキシ化合物は1〜30重量部含まれるものである、請求項3又は4に記載の接着剤組成物。
- 前記脂環式エポキシ化合物は、3’,4’−エポキシシクロヘキシルメチル−3,4−エポキシシクロヘキサンカルボキシレート、ビニルシクロヘキセンジオキシド、ジシクロペンタジエンジオキシド、およびビスエポキシシクロペンチルエーテルからなる群より選択された1種以上である、請求項1〜5のいずれか1項に記載の接着剤組成物。
- 偏光子と、前記偏光子の少なくとも一面に備えられ、請求項1〜6のいずれか1項に記載の接着剤組成物を用いて形成された接着剤層と、
前記接着剤層上の少なくとも一面に備えられた保護フィルムとを含む偏光板。 - 前記接着剤層の厚さは、0μm超過〜20μm以下である、請求項7に記載の偏光板。
- 前記保護フィルムは、アクリル系フィルムである、請求項7又は8に記載の偏光板。
- 表示パネルと、
前記表示パネルの一面または両面に備えられた請求項7〜9のいずれか1項に記載の偏光板とを含む画像表示装置。
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JP6826810B2 (ja) | 2015-10-07 | 2021-02-10 | 住友化学株式会社 | 偏光板 |
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KR102181860B1 (ko) * | 2017-09-22 | 2020-11-23 | 주식회사 엘지화학 | 접착제 조성물, 이를 이용하여 형성된 접착제층을 포함하는 편광판 |
KR102172568B1 (ko) * | 2017-09-22 | 2020-11-02 | 주식회사 엘지화학 | 접착제 조성물 및 이를 이용하여 형성된 접착제층을 포함하는 편광판 |
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TW201917188A (zh) | 2019-05-01 |
WO2019059667A2 (ko) | 2019-03-28 |
KR20190033797A (ko) | 2019-04-01 |
KR102181849B1 (ko) | 2020-11-23 |
JP2020533469A (ja) | 2020-11-19 |
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WO2019059667A3 (ko) | 2019-05-09 |
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